Index: .cirrus.yml
===================================================================
--- .cirrus.yml
+++ .cirrus.yml
@@ -16,7 +16,7 @@
 task:
   timeout_in: 120m
   install_script:
-  - pkg install -y qemu uefi-edk2-qemu-x86_64 llvm11
+  - pkg install -y qemu uefi-edk2-qemu-x86_64 llvm12
   setup_script:
   - uname -a
   - df -m
@@ -24,9 +24,9 @@
   - mkdir -p /usr/obj/$(pwd -P)
   - chown user:user /usr/obj/$(pwd -P)
   script:
-  - su user -c "make -j$(sysctl -n hw.ncpu) CROSS_TOOLCHAIN=llvm11 WITHOUT_TOOLCHAIN=yes buildworld buildkernel"
+  - su user -c "make -j$(sysctl -n hw.ncpu) CROSS_TOOLCHAIN=llvm12 WITHOUT_TOOLCHAIN=yes buildworld buildkernel"
   package_script:
-  - su user -c "make CROSS_TOOLCHAIN=llvm11 WITHOUT_TOOLCHAIN=yes PKG_FORMAT=tar packages"
+  - su user -c "make CROSS_TOOLCHAIN=llvm12 WITHOUT_TOOLCHAIN=yes PKG_FORMAT=tar packages"
   test_script:
   - sh tools/boot/ci-qemu-test.sh
   post_script: